Feature

Technical Developments in 2023

1988
SANYO DENKI EUROPE S.A.

57

May 2024

COLUMN
Cover image:

SANYO DENKI EUROPE S.A.
1988

In 1988, we founded our new Group Company, SANYO DENKI
EUROPE S.A., in Villepinte, Paris, France, aiming to sell our products
and explore new markets in France and neighboring countries.
It was originally located in a business district about 10 km north ofcentral Paris, near Charles de Gaulle Airport. Conveniently located nearmetro and highway lines, it served as our vital hub in Europe.
In 2023, it was relocated to Goussainville, expanded with a stepping
motor assembly factory next to it, aiming to expand our businesses in
Europe further. Combining the assembly factory with the sales officehas enabled us to deliver our products faster and make customizations
more flexibly in Europe.
SANYO DENKI Group continues to strengthen its supply and logistics
capabilities to swiftly deliver uniform, high-quality products and services
to our customers worldwide.

57
May 2024

SANYO DENKI TECHNICAL REPORT
C

O

N

T

E

N

T

S

Moving Toward a New Era at SANYO DENKI

Chairman of the Board & CEO

Features: Technical Developments in 2023

Shigeo Yamamoto

1

3■ Cooling Systems Division

San Ace Products

Masato Murata ............................................................................................... 3

92 × 92 × 38 mm San Ace 92 9RA TypeLow Noise Fan Masato Kakeyama and Others ..................................................................................... 5■ Power Systems Division

SANUPS Products

Naoya Nakamura ......................................................................................... 10

Development of the SANUPS A13A Online UPS

Hiroyuki Kaneko and Others ................ 14

The SANUPS A11N-Li Online UPS
with Long-life Li-ion Battery Takeo Murai and Others ................................................................ 19■ Servo Systems Division

SANMOTION Products

Tsuyoshi Kobayashi ............................................................................ 25

Development of the SANMOTION R
Power Supply Unit, Power Regeneration Model

Kenichi Fujisawa and Others ................. 28

List of Awarded and Nominated Engineers
for the 72nd JEMA Technological Achievement Award in 2023

34

Major Patents

35

Internal Recognition: Invention Excellence Award

36

Internal Recognition: Manufacturing Excellence Award

37

Technical Papers Published Outside the Company
in General Technical Journals

37

Technical Papers Published Outside the Company

37

Moving Toward a New Era
at SANYO DENKI
Shigeo Yamamoto Chairman of the Board & CEO

The history of SANYO DENKI is now almost a century long.
Over the last 100 years, the world has undergone major changes, withthe last 20 years being particularly remarkable.
In the 2000s, the Internet took root as a communication tool. In the2010s, demand for renewable energy grew considerably, and the 2020s areseeing an increasing interest in carbon neutrality.
Today, the inability to freely use computers or smartphones can be amajor obstacle in daily life.
Amidst this landscape, our 9th Medium-term Management Plan,
launched in April 2021, has entered its fourth year.
The primary goal of this plan is to “break the shell.”In the initial phase of this break-the-shell initiative, a total of as manyas 772 proposals were raised by the SANYO DENKI Group employees
across the world.
Similar ideas have been grouped into a total of 389 initiatives, all ofwhich have been set a timeline for implementation and are proceeding.
By the end of FY 2023, many of these initiatives had already come tofruition.
I am very proud of the way all the individual Group employees arebreaking out of the shells they have built around themselves, as if to say,“That’s out of my responsibility,” “That’s not my style of doing things,”
or “This is not our job,” and are standing tall in the face of change andprogress in the world, and even trying to thrive on change.
We have now reorganized our formal 29-year-old business divisionbased system consisting of the Cooling Systems Division, Power Systems
Division, and Servo Systems Division to establish a new system of threebusiness companies: the San Ace Company, Electronics Company, andMotion Company.

1

SANYO DENKI Technical Report No.57 May 2024

T he a i m is to a l low each busi ness compa ny to have its ow nmanagement tea m and be more i ndependent, and to make themanagement responsible not only for calculating the profit and loss of its
business but also for the effective use of its assets.
“Management with responsibility” enables each business company
to even conduct sales activities in its own way, in addition to theconventional way of selling products to customers through the sales
department.
Once we establish a business style in which our business companies
create new value using their technological capabilities, I believe that the
SANYO DENKI Group as a whole will be able to perform to the best of
its abilities.
This organizational change is our 390th initiative, added to the abovementioned 389 “break-the-shell” initiatives.
In this issue, in the feature articles entitled “Technical Developments
in 2023,” we will introduce the major new products we released in 2023
and their technologies. These new products incorporate our specialty
technologies that we have developed over the years and have beendeveloped based on the “break-the-shell” initiatives.
SANYO DENKI’s products and technologies contribute not only
to industrial development and technological innovation but also to thepreservation of the global environment, the effective use of energy, andthe health and safety of people.
Based on the new business company-based system, we at the SANYODENKI Group will continue to advance toward achieving happiness for
all people through our three product brands San Ace, SANUPS, andSANMOTION as well as our business activities.

SANYO DENKI Technical Report No.57 May 2024

2

Feature: Technical Developments in 2023

San Ace Products
Masato Murata

The use of generative AI suchas ChatGPT has quickly become
widespread through society andmany companies are looking
to adopt similar ser vices. Such
generative A I technologies are
expected to advance fast, raisingdemand for more and more data
centers to compute vast resourcesof information.
Although the COVID-19 infections
have come to a halt and manybusinesses are returning to in person operations, the efficient
network-based business practices
introduced during the pandemic ̶

including telework, online meetings,
and online training ̶ have taken root.
As such, servers, routers, andstorage devices that suppor tsuch generative AI systems andinformation networks are required
to perform better in speed, capacity,and reliability. Furthermore, today’sequipment as a whole is becoming
denser and generating more heat,
demanding cooling fans withsuperior performance in airflow,
static pressure, power consumption,and reliability.
In addition, with the Sustainable
Development Goals (SDGs) becoming■ Long Life Fan
power consumption than ever before.

primarily used in high-end servers andI n re sp on se to t he se ne e d s , we

ICT equipment, are often installed indeveloped and launched the San Ace

remote locations and therefore require

40L 9LG type Long Life Fan, which ishigh reliability and long expected life.

designed for low power consumption

Moreover, as equipment performance

while maintaining the same long life

increases in general, our existing Longas our current model and offering theLife Fans are also required to provide

industry’s highest(1) airflow and static

higher cooling performance and lower

pressure.

(1) Based on our own research as of May 25, 2023, conducted among axial DC fans ofequivalent size and cooling performance on the market.

3

Note: The company names and productnames listed in this article are thetrademarks or registered trademarksof their respective owners.

DC Fan• 40 × 40 × 28 mm San Ace 40L 9LG typeOur 40 × 40 × 28 mm Long Life Fans,a global agenda, it is vital to develop
products that consume less energy
and last longer for carbon neutrality.
Against such a backdrop, wedeveloped and launched cooling fanswith industry-leading performanceand reliability that can meet themarket demand.
Below are over views of the
products we developed in 2023.

SANYO DENKI Technical Report No.57 May 2024

■ 120 × 120 × 25 mm ACDC Fan• 120 × 120 × 25 mm San Ace 120AD 9AD type

For AC fans, there is increasing

and industrial equipment are moredemand for PWM control to adjust

compact and have less internal space,fa n speed based on the operati ng

demanding thinner-profile coolingconditions of equipment, as well as forfans, including ACDC fans.

wide input voltage ranges to support

In response to such market demand,

use in various countries. To meet these

we developed and launched the San

requirements, we have expanded our

Ac e 12 0A D 9A D t y pe fa n, wh ich

lineup of ACDC fans, which have afeatures a thickness of 25 mm, making

built-in AC-DC conversion circuit to

it our slimmest ACDC fan, as well as

drive a DC motor.

the industry’s highest(2) static pressure

Furthermore, today’s control panels

and airflow.

(2) Based on our own research as of June 26, 2023, conducted among ACDC fans ofequivalent size on the market.

■ Low Noise Fan

DC Fan• 92 × 92 × 38 mm San Ace 92 9RA typeO u r 9 2 × 9 2 × 3 8 m m f a n s a re

To meet such market demand, we

often used in workstations, medical

developed and launched the San Ace 92

equipment, and servers. In consideration

9RA type fan, which has achieved bothof environmental friendliness, demandhigh performance and the industry’s

for lower noi s e a nd lower p ower

lowest(3) noise at the same time. It willconsumption is increasing for thesebe introduced in detail in a separate

applications as well.

article in this issue.

(3) Based on our own research as of November 13, 2023, conducted among equally-sized
axial DC fans on the market.

AuthorMasato Murata
Design Dept., San Ace Company
Engaged in the design and development of cooling fans.

SANYO DENKI Technical Report No.57 May 2024

4

New Product Introduction

92 × 92 × 38 mm San Ace 92 9RA TypeLow Noise Fan
Masato Kakeyama

Rogen Molino

Jovelyn Villar

Nerissa Quiroz

Jan Mison

Sally Damasco

Tetsuya Yamazaki

1. Introduction
The 92 × 92 × 38 mm 9G type fan we released back in2003 still remains in high demand for use in workstations,medical devices, and rack-mounted/blade servers. However,as the SDGs (sustainable development goals) have quickly
become a shared agenda of the global community, theabove-mentioned equipment is increasingly pursuing better
performance in quietness and energy efficiency. Coolingfans, in particular, are required to offer both low noise andlow power consumption. To meet this changing market
demand, we have developed and launched the San Ace

Fig. 1 92 × 92 × 38 mm San Ace 92 9RA type92 9RA type Low Noise Fan featuring the same airflow
vs. static pressure characteristics as the current 92 × 92 ×consumption than the current product while maintaining

38 mm 9G type fan.

the same size and cooling performance.

This article introduces the features and performance of
this new product.

3. Product Overview

2. Product Features

3.1 Dimensions
Figure 2 shows the dimensions of the new product. The

Figure 1 shows the new product.

new product was designed to be compatible with the current

The new product has lower noise and lower power

product in size and mounting.

92±0.582.5±0.382.5±0.3

92±0.54×ø4.5±0.3
Mounting hole

（4）

300

38±0.5

+50
0

（10）

Lead wire
AWG 26
UL 1007
Rotational direction

Airflow direction

Fig. 2 Dimensions of the San Ace 92 9RA type (Unit: mm)

5

SANYO DENKI Technical Report No.57 May 2024

（4）

92 × 92 × 38 mm San Ace 92 9RA Type Low Noise Fan

3.2.2 Airflow vs. static pressure
characteristics

3.2 Specifications
3.2.1 General specifications
Tables 1 and 2 show the general specifications of the new

F i g u r e 3 s h ow s t h e a i r f l ow v s . s t a t i c p r e s s u r e

product.

characteristics of the new product.

To support a wide range of markets and serve as a

3.2.3 PWM control

successor to the current product, we launched a lineup ofmodels in three rated voltages of 12, 24, and 48 V and three

The high-speed model and medium-speed model comehigh, medium, and low speeds.

with PWM control for controlling the fan speed.

Table 1 General specifications of the San Ace 92 9RA type with PWM control
Rated
voltage[V]

Model no.

9RA0912P1J001
12
9RA0912P1G001
9RA0924P1J001
24
9RA0924P1G001
9RA0948P1J001
48
9RA0948P1G001

Operating PWM
Max. airflow
Rated Rated Rated
voltagedutycurrent input speed
range
cycle*[A][W] [min-1] [m3/min] [CFM]
[V]
[%]

10.8
to 13.2

21.6
to 26.4

43.2
to 52.8

Soundpressurelevel[inchH2O][dB(A)]

Max.
static pressure
[Pa]

100

1.24

14.9

6400

3.28

116

192

0.77

50

20

0.07

0.8

1600

0.82

29

12.0

0.05

12

100

0.96

11.5

5800

2.97

105

158

0.63

47

20

0.06

0.7

1400

0.72

25

9.2

0.04

10

100

0.62

14.9

6400

3.28

116

192

0.77

50

20

0.07

1.7

2200

1.13

40

22.7

0.09

19

100

0.48

11.5

5800

2.97

105

158

0.63

47

20

0.05

1.2

2000

1.02

36

18.8

0.08

17

100

0.31

14.9

6400

3.28

116

192

0.77

50

20

0.03

1.4

2000

1.02

36

18.8

0.08

17

100

0.25

12.0

5800

2.97

105

158

0.63

47

20

0.03

1.4

1700

0.87

31

13.6

0.05

13

OperatingExpected
temperature
life
range
[h]
[ºC]

-20 to +70

40000
at 60ºC(70000 at
40ºC)* The PWM input frequency is 25 kHz; the fan speed at 0% PWM duty cycle is 0 min -1.
Note: The expected life at an ambient temperature of 40ºC is for reference purposes only.

Table 2 General specifications of the San Ace 92 9RA type constant-speed models
OperatingRated Rated
voltagecurrent input
range
[A]
[W]
[V]

Rated
speed
[min-1]

7 to 13.2

1.24

14.9

6400

3.28

116

192

0.77

50

7 to 13.8

0.96

11.5

5800

2.97

105

158

0.63

47

9RA0912H1001

7 to 13.8

0.52

6.2

4650

2.36

83

102

0.41

40

9RA0924J1001

14 to 26.4

0.62

14.9

6400

3.28

116

192

0.77

50

14 to 27.6

0.48

11.5

5800

2.97

105

158

0.63

47

9RA0924H1001

14 to 27.6

0.26

6.2

4650

2.36

83

102

0.41

40

9RA0948J1001

36 to 52.8

0.31

14.9

6400

3.28

116

192

0.77

50

36 to 55.2

0.25

12.0

5800

2.97

105

158

0.63

47

36 to 55.2

0.14

6.7

4650

2.36

83

102

0.41

40

Model no.

Rated
voltage[V]

9RA0912J1001
9RA0912G1001

9RA0924G1001

9RA0948G1001
9RA0948H1001

12

24

48

Max. airflow

Max.
static pressure

Sound
OperatingExpectedpressure temperature
life
level
range
[inchH2O][h][dB(A)][ºC][m3/min] [CFM][Pa]-20 to +70

40000
at 60ºC(70000 at
40ºC)

SANYO DENKI Technical Report No.57 May 2024

6

210

Static pressure [Pa]Voltage: 12 V

9RA0912J1001

180

9RA0912G1001

150

9RA0912H1001

120
90
60
30
0

New product
0

0.5

1

1.5

2

2.5

3

3.5

Airflow [m3/min]Current productFig. 4 Frame shape comparison of the new andcurrent products

Fig. 3 Airflow vs. static pressure characteristicsof the San Ace 92 9RA type

4. Key Points of Development
The new product achieves lower noise and lower power
consumption than the current product while maintaining
the same cooling performance.
The key points of development are described below.

4.1 Motor and circuit design
To reduce power consumption from the current product,
the new product adopted a newly designed circuit, to which

New productCurrent productFig. 5 Comparison of the impeller shape of the
new and current products

the high-efficiency bipolar drive was chosen over the
unipolar drive used in the current product. Increasing the
motor size is effective for reducing power consumption,
but it makes noise reduction challenging. For this reason,
we maintained the same motor size as the current product.
We successfully reduced power consumption through the
optimization of the motor output against the impeller loadby increasing the motor winding fill factor.

4.2 Impeller and frame design
Figure 4 compares the frame shapes, and Figure 5
compares the impeller shapes of the new and current

Fig. 6 Simulation-based sound source analysis
exampleproducts. Figure 6 shows an example of simulation-based
sound source analysis.
While the current product has three spokes, the new
product features four spokes for improved frame strength.

5. Comparison of New and Current
Products

for the new product through simulation-based design

5.1 Comparison of the airflow vs. staticpressure characteristics and noise levels
between new and current models

optimization and evaluations on actual equipment by trying

Figure 7 compares the airflow vs. static pressure vs.

numerous combinations of parameters such as rotor hub

power consumption characteristics and airflow vs. noise

diameter, impeller shape, number and mounting angle ofcharacteristics of the current product and the fastest model

blades, frame shape, and spoke shape and layout.

of the new product. The new product has achieved a 13%

However, adding spokes tends to increase the noise level.
We have achieved lower noise and lower power consumption

reduction in power consumption at the assumed operating
point while maintaining the same airflow vs. static pressure

7

SANYO DENKI Technical Report No.57 May 2024

92 × 92 × 38 mm San Ace 92 9RA Type Low Noise Fan

350

been reduced by 3 dB(A). This means that, if the noise level300

of the current product can be tolerated, the new productoffers much higher cooling performance equivalent to two

60

Voltage: 12 V

Current product
9G0912G101

55
50

200
150

321 kg

280 kg1000Current product
9G0912G101

18

Current product
9G0912G101

200

15

13.7 W

6. Conclusion

13%
reduction

160

12

11.9 W120

New product
9RA0912G1001

80

9

6

3

Estimated
operating point

0

0.5

1

This article introduced the features and performance of
the San Ace 92 9RA type.
The new product achieved lower noise and lower power
consumption than the current product while maintaining
the same cooling performance. This contributes to noise
reduction and energy savings for equipment that is used nearpeople, such as workstations, medical devices, and rack-

Current product
9G0912G101
40

New product
9RA0912G1001

Fig. 8 CO2 emissions comparison using our LCA
calculation software (40,000 hours, when operated
with the same operating airflow)

40
240

Static pressure [Pa]250

New product
9RA0912G1001

45

013% reduction50

3 dB(A)
reduction

Power consumption [W]Sound pressure level [dB(A)]units of the current product.

CO2 emissions [kg]characteristics as the current product. The noise level has

1.5

mounted/blade servers.
We will continue developing products that promptly meetmarket demands to contribute to creating new value for our

2

2.5

3

3.5

customers.

Airflow [m3/min]Fig. 7 Comparison of the San Ace 92 new andcurrent products

Figure 8 compares the CO 2 emissions of the new andcurrent products over their life cycles.
The new product produces 13% less CO2 emissions overits product life cycle compared to the current product,
thanks to its reduced power consumption.

SANYO DENKI Technical Report No.57 May 20248

92 × 92 × 38 mm San Ace 92 9RA Type Low Noise Fan

AuthorMasato Kakeyama
Design Dept., SANYO DENKI PHILIPPINES, INC.
Engaged in the development and design of cooling fans.

Rogen Molino
Design Dept., SANYO DENKI PHILIPPINES, INC.
Engaged in the development and design of cooling fans.

Jovelyn Villar
Design Dept., SANYO DENKI PHILIPPINES, INC.
Engaged in the development and design of cooling fans.

Nerissa Quiroz
Design Dept., SANYO DENKI PHILIPPINES, INC.
Engaged in the development and design of cooling fans.

Jan Mison
Design Dept., SANYO DENKI PHILIPPINES, INC.
Engaged in the development and design of cooling fans.

Sally Damasco
Design Dept., SANYO DENKI PHILIPPINES, INC.
Engaged in the development and design of cooling fans.

Tetsuya Yamazaki
Design Dept., SANYO DENKI PHILIPPINES, INC.
Engaged in the development and design of cooling fans.

9

SANYO DENKI Technical Report No.57 May 2024

Feature: Technical Developments in 2023

SANUPS Products
Naoya Nakamura

SANUPS is the brand name forour power-related products including
uninterruptible power supplies(UPSs), PV inverters, and engine
generators. These products aredesigned to ensure a stable power
supply to customer equipment andeffectively use electric power toreduce CO 2 emissions, benefiting
both society and our customers.
This article briefs the featuresand innovations of the SANUPS
products we developed in 2023
and describes how they benefit ourcustomers and society.
We will first introduce the
SANUPS A13A modular UPS. ThisUPS offers highly reliable power

supply through parallel redundancy
and enhanced maintainability with
its hot-swappable module. Thesefeatures minimize equipment
downtime and provide stableequipment operation for ourcustomers.
N ex t , w e w i l l i n t r o d u c e t h e
SANUPS A11N-Li, a UPS featuringlong-life lithium-ion batteries andparallel redundancy.
By combining up to four 5 kVAbase units in parallel, this UP S
offers scalable output capacitiesof 5, 10, 15, and 20 kVA. Its newly
developed built-in lithium-ion battery
pack provides high efficiency andhigh reliability while also offering

compact and lightweight design,
long service life, and wide operating
temperature range.
This also helps reduce installation
space and running costs.
Finally, we will introduce the
SANUPS LiB Pack, a lithium -ionbattery pack. It achieves a high levelof safety by using iron phosphatebattery cells and a fully redundant
protection circuit. This compact,
lightweight, and long-life storage
battery can replace conventional
lead-acid batteries, saving spaceand reducing the environmental
impact.
Below is an overview of thesenew products and their features.

SANYO DENKI Technical Report No.57 May 2024

10

Feature: Technical Developments in 2023

■ Development of the SANUPS A13A Online UPS
The SANUPS A13A UPS is available

module, and bypass module are allin four output capacities ranging fromplug-in types, the UPS module and6.25 to 25 kVA by combining one tobattery module can be hot-swapped

four 6.25 kVA 3-phase UPS modules inand replaced even during operation.

parallel.
Its features are as follows.

T h e s e p a r a l l e l r e d u n d a n c y,modular design, and hot-swappable
mo du le feat u re s m a ke f ront- side

1. High conversion efficiency

ma i ntena nc e po s sible, i mprov i ng

It achieves a conversion efficiency of

product maintainability and

92% through the use of the latest IGBTm i n i m i zi ng equ ipment dow nti me.

module as a power conversion device
and optimized control.

4. Long service life

2. Highly reliable UPS topology

15 years, which is much longer than

The UPS module supports parallelthe 10 years of conventional UPSs.

redundant operation. For the three

Additionally, regular replacement parts

mo del s (1 2 . 5, 18 .75, a nd 2 5 kVA

such as a cooling fan and electrolytic

models) consisting of multiple UPS

capacitor last as long as the product,

modules, even if one U PS module

eliminating the need for replacement.

T he expected life of the U PS is

fails, the remaining modules continue

T hese features help reduce

supplying power through the inverter.

maintenance costs for our customers
and also contribute to the realization of

3. Improved maintainability

a sustainable society.

Its modular design achieves improved
maintainability.
Si nc e t he U P S mo du le, d i splay

11

Details on this product are covered ina separate article in this issue.

SANYO DENKI Technical Report No.57 May 2024

Fig. 1 The SANUPS A13A
25 kVA model■ Development of the SANUPS A11N-Li Online UPS
The SANUPS A11N-Li is a UPS

lithium-ion batteries, this productequipped with a specially developed

is free from replacement, reducing

lithium-ion battery pack.

replacement costs.

Lithium-ion batteries have a highenergy density and therefore require

2. Compact and lightweight

enhanced safety to prevent thermal

Compared to its predecessor, the new

runaway of battery cells. Therefore,

UPS is smaller and lighter, reducing

the battery pack comes with a built-in

volume and mass by 25% and 42%,

BMU (Battery Management Unit) that

respectively, without compromisingdetects and provides protection against

backup time.

Fig. 2 The SANUPS A11N-Li
5 kVA model

battery malfunctions. In addition, thesafety, having passed the drop test

3. Wide operating temperature
range

and combustion test specified in JIS C

It has a wider operating temperaturebattery pack achieves a high level of8715-2.

(1)

Its features are as follows.

range of -10 to 55ºC over the 0 to 40ºCof our conventional UPS. This enables
the UPS to be used under harsher

1. Long service life
Its long-life lithium-ion batteries

temperatures in high-density servers
and network devices.

c a n be ex pected to la st 10 yea r s.
Conventional UPSs with lead-acidbatteries would need to be replaced one

Details on this product are covered ina separate article in this issue.

to three times over 10 years. Featuring(1) Japanese Industrial Standards Committee:“JIS C 8715-2 (Secondary lithium cells and batteries for use in industrial applications ̶Part 2: Tests and requirements of safety)”

SANYO DENKI Technical Report No.57 May 2024

12

Feature: Technical Developments in 2023

■ Development of the SANUPS LiB Pack, a Lithium-Ion Battery Pack
Lithium-ion batteries are smaller(2) P rotection circuits with a circuitand lighter than lead-acid batteries
due to their higher energy density.

breaker(3) F u l l r e d u n d a n c y o f e a c hMoreover, lithium-ion batteries have aprotection circuit

low environmental impact because they
do not use heavy metals such as lead.
Thanks to these features, lithium-ion
batteries are increasingly being used toreplace lead-acid batteries.
It is against this backdrop that wedeveloped the SANUPS LiB Pack, a

2. Enhanced environmental
durability
The new battery pack has a wide
operating temperature range of -20 to
60ºC and therefore can be used underharsh environments.

high-safety lithium-ion battery pack.
Its features are as follows.

3. High performance
T he new bat ter y pack suppor t s

1. High safety

rapid charging and discharging. It can

T he new batter y pack con for ms

discharge with a maximum discharge

to UL 1973, (2) a safety standard for

current of 9C(3) (45 A) and charge with astorage batteries. Having a high energy

maximum charge current of 2C (10 A),

density, lithium-ion batteries require

making it suitable for applications thatan enhanced level of safety because

require high current output.

of their relatively high potential forserious accidents if mishandled.

4. Long service life

To achieve a high level of safety, theSince the new lithium-ion battery

new battery pack was designed with thepack has a longer service life than lead-following three features.

acid batteries, it reduces the man-hours(1) U se of iron phosphate battery

and cost of battery replacement.

cells(2) UL 1973 is a safety standard for batteries for use in stationary and motive auxiliary
power applications.
(3) The C-rate is a measure of the rate at which a battery is charged or discharged, with a
1C rate defined as the current that completes the charge/discharge of the entire battery
in one hour.

AuthorNaoya Nakamura
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

13

SANYO DENKI Technical Report No.57 May 2024

Fig. 3 The SANUPS LiB Pack

New Product Introduction

Development of the SANUPS A13A
Online UPS
Hiroyuki Kaneko

Toshifumi Nishizawa

Yoshimi Sunohara

Hiroya Tokutake

Hiroaki Miyoshi

Mika Takehara

1. Introduction

the inverter panel. For longer backups of 30 or 60 minutes,
an external battery panel is required.

Uninterruptible power supplies (UPSs) are devices that
protect customer equipment such as computers, servers, ICT
equipment, and production facilities by providing backup
power in the event of a power failure, and therefore a highlevel of reliability is required. Furthermore, since UPSs
keep running all the time, achieving a high conversion
efficiency is key to reduce CO2 emissions.
Against this backdrop, we newly developed the SANUPS
A13A modular UPS. This UPS features highly reliable
power supply, high efficiency, high maintainability, and longservice life thanks to its modular design.
In this article, we begin by introducing the appearance
and specifications of the new product. Next, we will describe
six features of the UPS, including its high conversion
efficiency, highly reliable power supply, and superb
maintainability.

2. Product Overview

Fig. 1 The SANUPS A13A inverter panel(25 kVA model)

Figure 1 shows the SANUPS A13A inverter panel. Main
UPS functions of the SANUPS A13A are modularized into

Inverter panel

separate modules. The module types are as follows.

Maintenance bypass circuit(1) UPS module

Bypass circuit

AC switch	A power conversion unit with an output capacity of
6.25 kVA per module(2) Display module	A mo du le for d i splay i ng i n for m at ion on a nd

AC
input
3-phase3-wireRectifierConverter

UPS module (No.1)

controlling UPS(3) Bypass module	A module for switching output to bypass during
maintenance(4) Battery module

InverterAC
output3-phase3-wireUPS module (No.4)
Battery (Built-in
8-minute battery)

Battery panel(30-/60-minute battery)

A module combining multiple lead-acid batteries
Figure 2 shows the circuit diagram. The standard battery

Fig. 2 Circuit diagram for the SANUPS A13A

backup time is 8 minutes, and a battery module is built into

SANYO DENKI Technical Report No.57 May 2024

14

Table 1 shows the electrical specifications. One unit of
the UPS module has an output capacity of 6.25 kVA. The

12.5, 18.75, and 25 kVA, which consist of one to four UPS
modules configured in parallel.

lineup is available in four different output capacities of 6.25,

Table 1 Electrical specifications of the SANUPS A13A
Item
Rated output capacity(Apparent power / Active power)

Technology

AC input

A13A183

A13A253

12.5 kVA/
10 kW

18.75 kVA/
15 kW

25 kVA/
20 kW

Remarks

Double conversion online

Cooling system

Forced air cooling

RectifierHigh power factor converter

Inverter

High-frequency PWM, instantaneous waveform control

No. of phases/wires

3-phase 3-wire

Rated voltage

200/210/220 V

Voltage range

At load levels ≥ 80%: Within ±15% of rated voltage
At load levels < 80%: Within -30% to +15% of rated
voltage

Rated frequency

50/60 Hz

Frequency range

Within ±10% of rated frequency

Operation guaranteed within this range

Current harmonic distortion

10% or less

At rated output

Input power factor

0.98 or greater

At rated output

No. of phases/wires

3-phase 3-wire

Rated voltage

200/210/220 V

Same as AC output

Voltage regulation

Within ±2% of rated voltage

Rated frequency

50/60 Hz

Same as AC input

Frequency regulation

Within ±0.5 Hz of rated frequency

In free run (asynchronous)

Grid synchronized range

Within ±15% of 200/210/220 V
Within ±1% of rated frequency (±1/3/5% selectable)

In grid operation

At linearload

2% or less

At rated input

At rectifier
load

5% or less

At rated input and 100% rectifier load

2% or less

At 100% unbalanced load

Voltage unbalance
Load power
factorRated

0.8 (lagging)

Variation
range

0.7 to 1.0 (lagging)

Abrupt input
voltagechangeAbrupt loadchangeWithin ±2% of rated voltage

Outage ↔ Recovery

Within ±5% of rated voltage

For 0 ↔ 100% load step changes

Outputtransfer

Within ±5% of rated voltage

During bypass to inverter transfer at rated
outputInverter

125% (for 10 min), 150% (for 1 min)At rated input and rated load power factor

Bypass

200% (for 30 s), 800% (for 2 cycles)

At rated input and rated load power factor

Overcurrent protection

Uninterrupted transfer to bypass at approx.
150% or more

Automatic retransfer after restored tonormal condition (In synchronous run)

Acoustic noise

50 dB
or less

Battery type

Small-sized valve-regulated lead-acid (VRLA) battery

Operating environment

Temperature: 0 to +40ºC, humidity: 30 to 90% RH (noncondensing)Transientvoltagefluctuation

Overload
capability

15

A13A123

6.25 kVA/
5 kW

Topology

Voltageharmonic
distortion
AC output

Model A13A622

SANYO DENKI Technical Report No.57 May 2024

50 dB
or less

55 dBor less

55 dBor less

1 m from front of UPS, A-weighting(At linear load)Development of the SANUPS A13A Online UPS

Figure 3 shows the dimensions of the inverter panel.
Model : A13A253

1545

Model : A13A183

500

650

125

125

125

1075

1370

Model : A13A622 / A13A123

500

650

650

650

Fig. 3 Dimensions of inverter panel (Unit: mm)

3. Features

Current models require switching to bypass output
for maintenance work or parts replacement. During

The UPS module uses a double conversion online UPS

maintenance, power is directly supplied from the grid totopology for power conversion. This ensures the delivery of

the load equipment, thereby stopping the functions of thehigh-quality power to equipment, unaffected by the voltage,

UPS. In contrast, the new product offers the hot-swappable

frequency, or voltage harmonic distortion of AC input

feature, allowing modules to be replaced without stopping

power.

UPS functions, thereby minimizing downtime.

The new product supports 3-phase 3-wire input/output

Moreover, each module can be removed and installed

power, with the voltage to support being configurable fromfrom the front of the UPS for easy replacement. Figure

200/210/220 V, covering a wide range of power systems. The

4 shows the structure inside the SANUPS A13A 25 kVAfeatures of the new product are given below.

inverter panel.
Furthermore, since the UPS module and bypass module

3.1 Highly reliable UPS topology
The UPS module supports parallel redundant operation.

are both plug-in modules, they can be hot-swap replaced
while the UPS continues running.

For the three models (12.5, 18.75, and 25 kVA models)To sum up, the new product’s parallel redundancy as wellconsisting of multiple UPS modules, even if one UPS

as the modular design and hot-swappable feature for front-

module fails, the remaining modules continue supplying

side maintenance achieve improved maintainability andpower as long as the UPS output capacity meets the load

minimized equipment downtime.

capacity requirement. This results in highly reliable power
supply.

3.4 Wide AC input voltage range
When the AC input voltage drops, UPSs switch to battery

3.2 High conversion efficiency
The SANUPS A13A uses the latest IGBT module as

power to protect load equipment. However, frequent use ofbattery power can accelerate battery degradation.

the power conversion device for the rectifier and inverter.

To mitigate this, the new product features a wide rated

Moreover, by optimizing power conversion control, it

input voltage range, extended from ±10% to ±15% of rated

achieves a conversion efficiency of 92%, marking an 8%

voltage compared to our conventional UPS, and the lower

improvement over our conventional SANUPS AMB UPS.

threshold can be further extended to -30% of the rated

The new product can contribute to reducing running costs

voltage when the load level is below 80%. This reduces theand CO2 emissions.

frequency of unnecessary transfer to battery power evenin environments with unstable input voltage, preventing

3.3 Improved maintainability
The new product uses a modular design to improvebattery degradation and reducing the need for battery
replacements.

maintainability.

SANYO DENKI Technical Report No.57 May 2024

16

Display module

peace of mind.
Even if the diagnosis reveals an abnormality in the bypass
circuit, the bypass module can be replaced without stopping
the UPS functions.
Bypass circuit
MC1

AC switch

MC2

UPS module
AC
input

RectifierInverterAC
outputFig. 5 Bypass circuit

Bypass module

4. Conclusion
In this article, we introduced the newly developed
SANUPS A13A modular UPS.

Battery module

It has the following six features.
(1) Re a l i z e s h ig h ly rel i able p ower sup ply t h roug hmodularized parallel redundant operation.
(2) Reduces running costs and CO2 emissions thanks to its
high conversion efficiency.

Fig. 4 Internal structure of inverter panel(25 kVA model)(3) Minimizes equipment downtime through improved
maintainability.
(4) Helps prevent battery degradation and reduce battery
replacement frequency thanks to its wide AC input

3.5 Long service life

voltage range.

The expected life of the new product is 15 years, which(5) Helps reduce maintenance costs and contributes tois much longer than the 10 years of conventional UPSs.

the realization of a sustainable society through its long

Additionally, regular replacement parts such as a cooling
fan and electrolytic capacitor last as long as the product,eliminating the need for replacement.(1)These features help reduce maintenance costs for ourservice life.
(6) Enables the bypass module to be replaced without
stopping UPS functions via its bypass circuit diagnostic
function.

customers and contribute to the realization of a sustainable
society.
(1) Regular replacement parts used: batteries and fuses.

3.6 Bypass circuit diagnostics
The new product can diagnose its bypass circuit while
supplying power through the inverter. Figure 5 shows the
bypass circuit. Diagnosis is performed by individuallyturning on and off the magnetic switches MC1 and MC2,
and the AC switch, and checking the voltage at both ends ofthe switches.
Since the bypass circuit can be diagnosed before switching
to bypass power, users can perform UPS maintenance with

17

SANYO DENKI Technical Report No.57 May 2024

The SA NUPS A 13A improves U PS reliability andensures high maintainability and availability by combining
modularization, parallel redundant operation, and a bypass
circuit diagnostic function.
Going forward, we will continue to develop products thatmeet customer needs and contribute to the realization of asafe and secure society.

Development of the SANUPS A13A Online UPS

AuthorHiroyuki Kaneko
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

Toshifumi Nishizawa
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

Yoshimi Sunohara
Design Dept., Electronics Company
Engaged in the mechanical design of UPS.

Hiroya Tokutake
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

Hiroaki Miyoshi
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

Mika Takehara
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

SANYO DENKI Technical Report No.57 May 2024

18

New Product Introduction

The SANUPS A11N-Li Online UPS
with Long-life Li-ion Battery
Takeo Murai

Hiroshi Yamada

Hirofumi Kimura

Shota Ozawa

Shogo Yoshinaga

Nobuya Otsuki

1. Introduction
Uninterruptible power supplies (UPSs) are devices that
ensure a stable power supply to servers, ICT equipment, andTakuya Ozawa

The product lineup is available in four models with 5, 10,15, and 20 kVA output capacities consisting of one to four
5-kVA base units connected in parallel. Figure 3 shows the
SANUPS A11N-Li 20 kVA model.

factory equipment and also protect against data loss andequipment damage in the event of a power outage by supplying
power until the equipment can be safely stopped or shut down.

Table 1 shows the electrical specifications of the SANUPS
A11N-Li single-unit type 5 kVA model.

It has been demanded to offer a UPS with a longer service
life, a reduction in size and weight, and a wider operating
temperature range. However, since there has been no otherbattery option than the mainstream lead-acid battery,achieving these specification requirements has been difficult.
In response, we recently started developing lithium-ion
battery (LIB) UPSs, which use high-energy-density LIB inplace of conventional lead-acid batteries.
In this article, we will introduce the SANUPS A11N-Li LIB
UPS. We will begin by presenting its appearance and electrical
specifications. Next, we will describe its features including
safety features for ensuring safe use of lithium-ion batteries.

Horizontal

Vertical

2. Product Overview
The SANUPS A11N-Li uses the same UPS unit as ourconventional lead-acid battery UPS, the SANUPS A11N.(1)Therefore, it inherits the high conversion efficiency andhighly reliable parallel redundancy of the conventional
product.
The new product, however, features a newly developed
dedicated LIB pack in place of the conventional product’s
lead-acid battery for improved performance. This change
provided the new product with a longer service life, a smaller
and lighter design, and a wider operating temperature range.
Figure 1 shows the SANUPS A11N-Li 5 kVA model. The
battery pack and inverter come as plug-in modules. Figure
2 shows the internal structure of the SANUPS A11N-Li
5 kVA model.

19

SANYO DENKI Technical Report No.57 May 2024

Mounted in a 19-inch rack

Fig. 1 The SANUPS A11N-Li 5 kVA model

The SANUPS A11N-Li Online UPS with Long-life Li-ion Battery

Lithium-ion battery pack

Inverter module

Fig. 2 Internal structure of the SANUPS A11N-Li
5 kVA modelFig. 3 The SANUPS A11K-Li 20 kVA model

Table 1 Electrical specifications of the SANUPS A11N-Li single-unit type 5 kVA model
Items

Type

AC
input

AC
outputRatings and characteristics

Model

A11NL502

Topology

Double conversion online

Inverter

High-frequency PWM

Cooling system

Forced air cooling

Rated voltage

200/208/220/230/240 V

Rated frequency

50/60 HzNo. of phases/wires

Single-phase 2-wireRemarks
Grid synchronous

Voltage range: Within -40% to +15% of rated voltage

Max. output capacity

5.5 kVA or lessMax. capacity during battery recovery charging

Power factor

0.95 or greater

At rated output and when input voltage harmonic distortion < 1%

Rated capacity

5 kVA / 4.5 kW

Apparent power / Active power

No. of phases/wires

Single-phase 2-wire

Rated voltage

200/208/220/230/240 V

Voltage waveform

Sinusoidal

Voltage regulation

Within ±2% of rated voltage

At rated output

Rated frequency

50/60 Hz

Auto-sensing or fixed frequency selectable

Frequency regulation

Within ±1/3/5% of rated frequency In free (asynchronous) run: Within ±0.5%

Voltage harmonic distortion

3% / 7% or less

Loss/returnof input power

Within ±5% of rated voltage

Abrupt input
voltage change
Response time

Load power factor

At linear load / rectifier load, at rated output
For 10⇔100% load step changes

Abrupt load change
Transientvoltagefluctuation

User-selectable. Factory setting: 200 V

At rated output
For ±10% abrupt changes

5 cycles or less

Excluding when loads are removed

0.9 (lagging)

Variation range: 0.7 (lagging) to 1.0

Efficiency

94% or greater

For reference purposes only

Overcurrent protection

110% or greater

Automatic transfer to bypass

Inverter

110% / 118%

For 1 min / Instantaneously

Bypass

200% / 800%

For 30 s / 2 cycles

287 W

At rated output after battery recovery charging

45 dB or less

1 m from front of UPS, A-weighting

51 dB or less

1 m from front of UPS, A-weighting, at start of charging

5 mA or less

3 mA or less under the setting without asynchronous operation

Overload
capability
Heat dissipation
Acoustic noise
Leakage current

SANYO DENKI Technical Report No.57 May 2024

20

3. Features

3.3 Wide operating temperature range
The new product has a wider operating temperature

Table 2 compares the specifications of the conventional

range of -10 to 55ºC, extended from the 0 to 40ºC of the

SANUPS A11N 5 kVA single-unit type using lead-acidconventional product, enabling use in harsher environments

batteries and the new SANUPS A11N-Li 5 kVA single-unit

4. Key Points of Development

type.

Table 2 Specification comparisonof the SANUPS A11N and SANUPS A11N-Li
A11N
single-unit type5 kVA model

A11N-Li
single-unit type5 kVA model

Small-sized
valve-regulated
lead-acid (VRLA)
battery

Lithium-ion battery

Backup time
[min]

10

10

Battery life
(30ºC ambient
temperature)

About 5 years

End-of-life
capacity

50%

Model

Battery type

Lithium-ion batteries have a high energy density andrequire enhanced safety measures to prevent thermal
runaway of the cells. Therefore, the battery pack comes withmanagement functions to detect and protect against battery
malfunctions. It features a robust housing and cell layoutthat suppresses smoke and fire from cells, if one occurs.
Figure 4 shows the circuit configuration of the SANUPS
A11N-Li single-unit type 5 kVA model.
A battery pack consists of 24 V battery modules in an
8S2P (8-series 2-parallel) configuration, and each battery

About 10 years

module consists of multiple battery cells. A CMU (CellManagement Unit) measures the battery module’s voltage,

80%

Dimensions
435 × 700 × 174.5 435 × 700 × 130[W × D × H mm]
Required rack
space*

4U

3U

Battery capacity
[Wh]

940

1056

Mass [kg]80

46

Operatingtemperature
range

0 to +40ºC-10 to 55ºC

* For EIA standard 19-inch racks. One rack unit (1U) occupies
44.5 mm of height.

current, cell voltage, and cell temperature, and controls thecell voltage balance accordingly. Each CMU communicatesbat ter y mo du le i n for mat ion to t he BM U (Bat ter yManagement Unit). The BMU monitors all the cells to
detect and protect against battery pack abnormalities. It
also calculates the battery capacity and communicatesmeasured values and fault information to the inverter
module. If the BMU detects an abnormality such as cell
overcharge or overdischarge, it disconnects all the battery
modules from the main circuit to ensure safety.
Given below are the new product’s fault detection andprotection functions and its safety design.

In addition to the same features as the conventional
product, the new product has the following additionalfeatures.

3.1 Long service life
Lithium-ion batteries have an expected life of 10 years,
saving the man-hours and cost of replacing batteries.
Moreover, the end-of-life capacity of lithium-ion batteries is80%, while that of lead-acid batteries is 50%, offering longer
backup times for extended periods of time.

3.2 Reduced size and weight
Compared to the conventional product, the new producthas been made smaller and lighter, reducing volume andmass by 25% and 42%, respectively, without compromising
backup time.

21

SANYO DENKI Technical Report No.57 May 2024

The SANUPS A11N-Li Online UPS with Long-life Li-ion Battery

Inverter module

Battery packBattery
MCCB

Battery relay 1

CMU-equippedbattery module
M8

CMU-equippedbattery module
M16

CMU-equippedbattery module
M2

CMU-equippedbattery module
M10

8S2P
192 V
battery
moduleRelay drive
signalCharger

Battery relay 2

CMU-CMU
communication

Inverter

BMU
24 V

Inverter module-BMU communication

CMU-CMU
communication

CMU-CMU
communication
CMU-equippedbattery module
M1

CMU-equippedbattery module
M9

BMU-CMU communication

Fig. 4 Circuit configuration of the SANUPS A11N-Li single-unit type 5 kVA model

4.1 Fault detection and protection

the battery module’s temperature sensor. In addition,

If the BMU detects any of the following faults (1) throughthe inverter module stops charging and discharging(5), the BMU turns off the battery relay 1 and quickly

for protection by detecting a rise or drop
123 in ambient

disconnects all the battery modules from the main circuit.
The inverter module, upon receiving fault information from

図版の文字

temperature.
(5) Communication error detection

英語版用

Condens

英語版用

the BMU, shuts down the charger. If a fault is detected

The BMU monitors CMU-CMU and
CMU-BMU
Times
Ten

during battery operation, the inverter module will also turncommunications. T he BM U and inverter module

off the battery relay 2 and disconnect the main circuit. This

monitor communications between the BMU and inverter

ensures the protection of both the inverter module and themodule. A communication error is detected wheneverbattery pack.

any of the communications are interrupted.

(1) Overcharge/Overdischarge voltage detection

Even if a relay cannot be disconnected through (1) to (5)The BMU detects overcharge and overdischarge by

above, the UPS ensures protection against overcurrent andmonitoring the battery module voltage and cell voltage

short circuits for safe use by blowing the fuse of each CMU

measurement data sent from the CMU.

and turning off the battery MCCB connected in series to the(2) Cell imbalance detection

battery relay 1.

The BMU monitors all the cell voltage information
sent from the CMU to detect excessive imbalances in cellvoltages based on their maximum and minimum values.
(3) Charging/Discharging overcurrent detection

4.2 Structural safety
The battery pack is protected by a steel plate enclosure towithstand external shocks. Figure 5 shows the battery pack.

The BMU detects overcurrent by monitoring the

In a battery module, eight battery cells are laid out in acharge and discharge current data measured by theway so that they do not interfere with each other. Therefore,

CMU using a current sensor.

even if a cell catches fire, heat transfer to surrounding cells(4) Over/Under-temperature detection

is reduced, thereby suppressing the spread of fire. Figure 6

The BMU detects over-/under-temperatures in theshows the cell configuration of the battery module.

cells by monitoring the cell temperature measured by

SANYO DENKI Technical Report No.57 May 202422

5. Conclusion
In this article, we introduced the SANUPS A11N-Li
LIB UPS. The new product offers the following featuresand ensures the safety required when using lithium-ion
batteries.
(1) Uses lithium-ion batteries to achieve a long service life,a small and lightweight design, and a wide operating
temperature range.

Fig. 5 Battery pack(2) Safety features to ensure a high level of safety: battery
management functions for detecting and protecting
against battery faults and a battery design that prevents

Cell

cell smoke or fire, if one should occur, from spreading.
Looking ahead, we plan to expand our lineup of lithiumion battery UPSs based on these achievements.
References(1) Makoto Kitazawa and others: “Development of the Online UPS
SANUPS A11N”, SANYO DENKI Technical Report No.54(2) Japanese Industrial Standards Committee: “JIS C 8715-2(Secondary lithium cells and batteries for use in industrial
applications ̶ Part 2: Tests and requirements of safety)”

Secured to prevent cells frominterfering with each otherFig. 6 Cell configuration of battery module
The battery pack ensures a high level of safety, having
passed the drop test and combustion test specified in JIS
C 8715-2 (Secondary lithium cells and batteries for use inindustrial applications—Part 2: Tests and requirements ofsafety).(2)23

SANYO DENKI Technical Report No.57 May 2024

The SANUPS A11N-Li Online UPS with Long-life Li-ion Battery

AuthorTakeo Murai
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

Hiroshi Yamada
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

Hirofumi Kimura
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

Takuya Ozawa
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

Shota Ozawa
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

Shogo Yoshinaga
Design Dept., Electronics Company
Engaged in the development and design of power supply units.

Nobuya Otsuki
Design Dept., Electronics Company
Engaged in the mechanical design of UPS.

SANYO DENKI Technical Report No.57 May 2024

24

Feature: Technical Developments in 2023

SANMOTION Products
Tsuyoshi Kobayashi

We at the SANYO DENKI Group
aim to create new value and addresssocial issues by developing andproviding products and services thathave never been seen before. In linewith the increasing awareness of
the SDGs in recent years, we havebeen developing new products thatenhance the performance, quality,
and reliability of our customers’
equipment while also consideringsocietal and environmental impacts.
This article presents the
SANMOTION products developedin 2023.
Firstly, we have added a new
power regeneration model to thelineup of the SANMOTION R power
supply units. This model feeds
the regenerative power generated
during servo motor decelerationback to the power grid.
When a motor decelerates, it
acts as a generator and produces
regenerative power. Through thistechnology, the unit ef ficiently

25

feeds the energy back to the power
grid, reducing power consumption
in equipment and fac tories. In
addition, it accurately measuresthe current and volt age of theconverter, allowing users to checkthe amounts of power consumed
by their servo system and saved byreusing it.
The product contributes to making
equipment more energy-saving with
its power regeneration technology
and power condition visualization.
Next, we developed theS A N M OT I O N C S 2 0 0 m o t i o ncontroller with technology
for managing equipment
operation featuring functions forequipment status monitoring andtroubleshooting.
This product can remotely monitor
equipment conditions and send
production status notifications byemail, enabling maintenance fromany location.
It also records ser vo system

SANYO DENKI Technical Report No.57 May 2024

information and camera images
on memor y cards over long
periods, enabling users to checkequipment operating conditions andquickly address errors for reduced
downtime.
To sum up, the power regeneration
model of the SANMOTION R power
supply unit contributes to reducing
c u s to m e r p o we r c o n s u m p t i o n
and preserving the global
environment through the use of
power regeneration technology andenergy-saving useful functions.
The motion controller uses email
notifications, remote monitoring,and image recording to improveequipment productivity andcontribute sustainable production.
Below are some of the featuresof these new products and theirc ontribution to customers andsociety.

■ The SANMOTION R power supply unit, power regeneration modelR e c e nt l y, e f fo r t s h ave b e e n

T he new model enables the

such as inspections, repairs, and parts

underway toward the realization ofregenerative power to be reused toreplacements, ensuring the productivity

an eco-friendly, sustainable society

power other equipment, reducing theof production lines.

through the effective use of renewabletotal power consumption of a factory.

energy and further energy savings.
In this context, servo systems are
required to use energy more efficiently
a nd c ont r ibute f u r t her to energ y

A d d it io n a l ly, a d r ive re c o rd er
logs the power regeneration model’s

2. Power supply and power
consumption monitoring

operating conditions, power supply
status, and load conditions as

T he voltage, current, f requency,

waveforms, helping identify changes

and power consumption during theand alarm causes to reduce recovery

To meet these ex pectations, we

new m o d el’s p ower r u n n i n g a ndtime.

have added a newly developed power

regeneration can be checked via an

regeneration model to the lineup of

Et her C AT- c on ne c t e d c ont rol ler.

In this way, the power regeneration

the SANMOTION R power supply

T he f u nct ion helps u ser s reduc emodel added to the SANMOTION

units, which feeds the servo motor’s

electricity costs by enabling

R power supply unit lineup facilitates

regenerative power back to the power

them to rev iew the operati ng

energ y ma nagement for customer

grid. Its features are as follows.

conditions and manage the powere q u i p m e nt a n d e nt i r e f a c t o r i e s ,consumption of their entire

contributing to reduced electricity costs

1. Reuse of regenerative power

factory based on this information.

and environmental preservation.

W hen equ ipment dec elerates,

Such detailed operational data helps

savings.

the servo motor acts as a generator

review the operating conditions ofand produces regenerative power.

equipment and manage factory powerOu r cu r rent regenerative resistor

consumption, reducing electricity costs.

Details on this product are covered ina separate article in this issue.

model, with its resistor, consumes
the regenerative power as heat. The
existing power supply unit lineup has

3. Remaining component life
estimation

been expanded with the addition of

The product estimates the remaining

the new power regeneration model,

lifespan of regular replacement parts,

which feeds the regenerative power

enabling users to plan a replacementback to the power g r id for reuse.

for components such as the main circuit
electroly tic capacitor and coolingfan. This helps planned maintenanceNote: The company names and product names listed in this article are the trademarks orregistered trademarks of their respective owners.

SANYO DENKI Technical Report No.57 May 2024

26

Feature: Technical Developments in 2023

■ The SANMOTION C S200 Motion Controller
In recent years, IoT technologies

u nder st a nd t he equ ipment st at u sequipment status as an image when

have been increasingly used in various

and production conditions, helping

connected to a webcam. For example,

i ndu st r ies to i mprove product ion

maintain stable, efficient production.

when an error occurs, the new productproductivity and quality. To ensure
efficient, stable production, motion
controllers must detect changes in therecords images before and after the

2. Remote monitoringand maintenancethe root cause.

operating conditions and the ambient

Remote monitoring of the operating

environment of equipment to promptly

conditions, including axis positions andIn this way, the motion controller

respond to these changes. There iserror information, has been achieved byis designed to detect changes in thealso a demand to collect and record

connecting the device to Automation

operating conditions and ambient

equipment data in real time to quickly

Serverand using the web-based data

env i ron ment of t he equ ipment ,resume operations in the event of avisualization. (2) Furthermore, users

promptly notifying users of the status.

shutdown.

(1)c a n test a nd mod i f y prog ra m s by

If an error occurs, users can analyze

Ac c ord i ng ly, we develop e d t heconnecting to a VPN(3). This function

the recorded data to promptly identify

SA NMOTION C S2 0 0 motion

enables equipment to be maintained

the cause, reducing the time needed tocontroller, which accurately monitorsfrom any location at any time, reducing

restore normal operational status.

equipment operating conditions forthe time required for maintenance andeasy maintenance. Its features are as

inspection.

follows.

Furthermore, it contributes
to i mprov i ng t he pro duc t iv it y ofe q u i p m e nt b y e n a b l i n g u s e r s t o

3. Quick root cause analysis
1. Real-time monitoringof equipment conditions

The new controller can collect andrecord time-series data on connected

T h i s c ont rol ler feat u re s SM T P

servo systems, digital input/output

protocol-based email notification tosignals, and environmental conditions

promptly inform the administrator

such as temperature and humidity. It

when equipment errors are detected.

can store the collected data in its built-

It can also send notification emails

in storage or a microSD card, enabling

regarding production information suchusers to check equipment operating

as when the planned production volume

conditions over long periods of time.

is reached. This enables users to quickly

The new controller can also record the(1) The name of the cloud service provided by CODESYS for remotely operating controllers.
(2) A drawing tool feature for designing screens on a web browser.
(3) VPN, or Virtual Private Network, is a technology for connecting locations with dedicatedvirtual lines and securely exchanging information.
Note: The company names and product names listed in this article are the trademarks orregistered trademarks of their respective owners.

AuthorTsuyoshi Kobayashi
Design Dept., Electronics Company
Engaged in the design and development of servo ampliﬁers.

27

error, enabling prompt identification of

SANYO DENKI Technical Report No.57 May 2024

remotely monitor the operating statusof equipment and perform maintenancewhen necessary.

New Product Introduction

Development of the SANMOTION R
Power Supply Unit,
Power Regeneration Model
Kenichi Fujisawa

Takashi Kataoka

Yoshihisa Kubota

Noriaki Kasuga

Yuuki Nakamura

Mitsuhiro Nishimura

Toshio Hiraide

Takuya Nishizawa

Mitsuru Takasugi

1. Introduction
Curbing global warming, which is causing widespreadclimate change, requires sustainable initiatives focusedon environmental conservation and enhancing energy
efficiency.
In the field of servo systems, there is a growing demandfor products that offer energy savings, low carbon emissions,and enhanced maintainability, in addition to improved servo
performance.
In response, we have added to the SANMOTION R
power supply unit lineup a new power regeneration modelthat features energy savings, reduced CO2 emissions, andimproved maintainability.
This article provides a product overview and introduces
the features of the power regeneration model of theFig. 1 New model

SANMOTION R power supply unit (hereinafter, “newmodel”).

2.1 Appearance295

2. Product Overview
Figure 1 shows the new model and Figure 2 shows its
dimensions.

2.2 Product lineup

300

200

95
40

T he S A N MOT ION R mu lt i- a x i s ser vo system i s
configured by combining a power supply unit, amplifierunit(s), control board(s), and servo motor(s) according to
the customer’s equipment, as shown in Figure 3. To expand

380

regeneration model (200 VAC, 37 kW).

460

the power supply unit lineup, we have added the power

When using the new model, an AC reactor is to beinstalled to mitigate the current and voltage distortions, as
40

shown in Figure 4.

Fig. 2 Dimensions of new model (Unit: mm)

SANYO DENKI Technical Report No.57 May 2024

28

Unit lineup
NEW

Power
supply unit
12 kW

7.8 kW

16 kW

30 kW

37 kW

Power
regeneration
model
37 kW

Amplifier
unit
50 A

100 A

150 A

300 A

900 A

600 A

Controlboard

Analog (single axis)

EtherCAT (single axis)

EtherCAT (Max. 4 axes)

Servo motor
Analog: Max. 6 axes
EtherCAT: Max. 5 axes

Fig. 3 Lineup of the SANMOTION R multi-axis servo systems

図版の文字

123

Host controller

英語版用Condens

AC reactor(for power
regeneration
model)

Control board
英語版用Power supply
unit

Times Ten

(Up to 5 axes)（a）従来品
Amplifierunit

Amplifierunit

GroundGroundGroundAC power input

Ground

Servo
motor

Servo
motor

Fig. 4 System configuration for new model

29

SANYO DENKI Technical Report No.57 May 2024（b）開発品Development of the SANMOTION R Power Supply Unit, Power Regeneration Model

2.3 Specifications
The new model supports a 200 VAC input voltage and can
output and regenerate a rated power of 37 kW. Table 1 shows
the general specifications.

Table 1 General specifications
Items

Specifications and functions

Main power supply voltage (3-phase)

200 to 230 VAC +10%, -15%

Power supply frequency

50/60 Hz ± 3 Hz

Allowable power voltage imbalance±2%

Control power (power supply unit)

24 VDC ±15%

Control power (amplifier unit)

200 to 230 VAC +10%, -15%

Rated power

37 kW

Maximum instantaneous power

74 kW

Power factor (during power running)
Power factor (during regeneration)

92.0% (at 100% load)
88.0% (at 100% load)

Regenerative capacity

Continuous at 100%, 20 s at 200%

Regeneration control

Combination of power regeneration and regenerative resistor*

Dimensions

300 (Width) × 460 (Height) × 295 (Depth) [mm]Mass

24.5 kg

Compliance with standards

UL/cULUL 61800-5-1

Electrical safety

IEC 61800-5-1
EN 61800-5-1

EMC

EN 61000-6-2
IEC 61800-3
EN 61800-3

KC Mark

KS C 9610-6-2
KS C 9610-6-4

RoHS Directive

IEC 63000:2018
EN 63000:2018* External regenerative resistor required separately.

With a maximum regenerative capacity of up to 200% ofnthe rated output for 20 seconds, the new model is available

during regeneration, however, regenerative power cannot

A
Power

power instantaneously. If a momentary outage occurs

D

ec

el

er

at

io

n

Power supply

be fed back to the power supply. In such cases, the newmodel switches to the built-in regenerative resistor, ensuring

Regenerative power(generated)reliable use.

3. Features

er

l

e
cc

for equipment that generates large amounts of regenerativeio
atFig. 5 Illustration of regenerative power produced
during servo motor operation

図The main features of the new model are as follows.

1

The SANMOTION R multi-axis servo system’s main

3.1 Reuse of regenerative power
Servo motors are powered by the power supply during
acceleration and constant-speed operation. Du r i ng

英C

circuit power supply can be shared through the system and英the regenerative power can be used to drive servo motors onTthe other axes.

deceleration, on the other hand, they act as generators

With the current regenerative resistor model, any excess

and produce regenerative power. Figure 5 illustrates how

regenerative power is only consumed as heat in the resistor,

regenerative power is produced during servo motor operation.

instead of powering other axes. By replacing the current

SANYO DENKI Technical Report No.57 May 2024

（a）
従来品

30

regenerative resistor model with the new model, theNo.

Power supply conditionand power consumption monitoring

for reuse in other devices within the same equipment or

1

Main circuit input voltage effective value monitor

elsewhere in the factory.

2

Average current monitor

3

Main circuit power frequency monitor

4

Main circuit DC voltage monitor

5

Average power monitor

6Power running monitor

7Power consumption integration monitor

8Power regeneration power monitor

9Power regeneration power amount integration
monitor10

Power regeneration status monitor

regenerative power can be fed back to the power supply

Figure 6 illustrates the flow of power during power
running and regeneration.
Power supply(power running)

Accelerationor constant speed〜
Fed back topower supply
for reusein other equipment

Regenerative Deceleration
power(regeneration)
Reuse
in other axes Acceleration

Fig. 7 List of monitored power supply and power
consumption items

or constant speed
図版の文字

Other
equipment

Fig. 6 Flow of power during power runningand regeneration

123

The new model is equipped with a device designed to
英語版用detect power supply
Condens voltage and current for controlling
英語版用device measures the actual power
regeneration. This

Times Ten

supply voltage and current, providing high-precision powermonitoring.
These monitoring features help assess input power quality,

The new model reduces the electricity usage in machineryand entire factories, also reducing CO 2 emissions. For）従来品（b）開発品 usage management acrossenabling（aefficientelectricity

equipment and the entire factory.

example, if a servo motor runs in a cycle of operating at
100% of its rated output and then switches to regeneration
at 50%, the new model reduces CO 2 emissions by 43%
compared to the regenerative resistor model. This reduction
contributes to mitigating global warming.

3.3 Improved maintainability(preventive maintenance)
The remaining life of the relays, electrolytic capacitors,
and cooling fans used in the new model can be monitored
using EtherCAT communication and setup software. Figure

3.2 Power supply and power consumption
monitoring

8 shows the remaining life monitoring screen.

As shown in Figure 7, the new model is equipped withfeature-rich monitoring that allows users to check power
supply conditions such as voltage, current, and frequency, as
well as the power consumption during power running andregeneration.

Fig. 8 Viewing monitored items using the setup
softwareBased on the remaining life of individual parts, the power
supply unit can be maintained systematically.

31

SANYO DENKI Technical Report No.57 May 2024

Development of the SANMOTION R Power Supply Unit, Power Regeneration Model

3.4 Enhanced troubleshooting analysis(drive recorder)

Users can check the input power supply voltage andcurrent of the power supply unit, as well as the power

The current lineup of the SANMOTOR R multi-axis servo

consumption of the servo system. This contributes tosystem offers a drive recorder on the control board, which ismonitor of quality of the input power source and manage

useful for analysis during troubleshooting. The new model

the electric energy consumption within the equipment andoffers a drive recorder as well, enabling it to collect data,

factory.

which was not the case for the current regenerative resistor
model.

• I mproved maintainability

Figure 9 lists the data that can be stored by the drive
recorder.

The power supply unit can be maintained systematically
based on the remaining life of relays, electroly tic
capacitors, and cooling fans, minimizing equipment

No.

Data stored by drive recorder

1

Main circuit power frequency monitor

2

Main circuit rectifier voltage monitor

3

Main circuit input voltage effective value monitor

4R-phase current monitor

5S-phase current monitor

6

Average current monitor

downtime.
• Enhanced troubleshooting analysis

Equipped with a drive recorder, the new model swiftly
identifies and resolves issues that may arise.
Overall, the new model offers increased energy efficiency,

7

Internal temperature monitor

reduced carbon emissions, and enhanced maintainability.

8

Average power monitor

Going forward, we will continue to develop products that

9Power running monitor

help create new value for our customers.

10Power consumption integration monitor

11Power regeneration power monitor

12Power regeneration power amount integration
monitor

13

IGBT monitor on overcurrent condition

References

14

Power regeneration status monitor(1) Masaaki Mizusawa and 6 others: “Development of theFig. 9 Data stored by drive recorder

Note: The company names, product names, and network protocol
names mentioned in this article are the trademarks orregistered trademarks of their respective owners.

SANMOTION R 400 VAC Input Multi-axis Servo Systems(37 kW, 300/600 A)”
SANYO DENKI Technical Report, No. 51, pp. 27-31 (2021.5)

By integrating two drive recorders—one for the control(2) Takashi Kataoka and 7 others: “SANMOTION R ADVANCED

board and another for the new model—more extensive data

MODEL 400 VAC Input Multi-axis Servo Amplifier”

can be analyzed. This ensures prompt troubleshooting,

SANYO DENKI Technical Report, No. 45, pp. 34-38 (2018.5)

minimizing downtime and speeding up recovery.

4. Conclusion
In this article, we presented an overview of the power
regeneration model of the SANMOTION R power supply
unit (200 VAC, 37 kW) and described some of its features.
The significance of the new model is as follows.
• Energy savings

Power regeneration technology has been adopted toefficiently reuse regenerative power in other axes of thesame equipment or other equipment within the factory,
reducing overall power consumption throughout the facility.
• V isualization of power supply conditions and power

consumption

SANYO DENKI Technical Report No.57 May 202432

Development of the SANMOTION R Power Supply Unit, Power Regeneration Model

AuthorKenichi Fujisawa
Design Dept., Electronics Company
Engaged in the design and development of servo ampliﬁers.

Takashi Kataoka
Design Dept., Electronics Company
Engaged in the design and development of servo ampliﬁers.

Yoshihisa Kubota
Design Dept., Electronics Company
Engaged in the design and development of servo ampliﬁers.

Noriaki Kasuga
Design Dept., Electronics Company
Engaged in the design and development of servo ampliﬁers.

Mitsuru Takasugi
Design Dept., Electronics Company
Engaged in the design and development of servo ampliﬁers.

Yuuki Nakamura
Design Dept., Electronics Company
Engaged in the design and development of servo ampliﬁers.

Mitsuhiro Nishimura
Design Dept., Electronics Company
Engaged in the design and development of servo ampliﬁers.

Toshio Hiraide
Design Dept., Electronics Company
Engaged in the design and development of servo ampliﬁers.

Takuya Nishizawa
Application Engineering Dept., Sales Headquarters
Engaged in the design and technical advisory of servo ampliﬁers.

33

SANYO DENKI Technical Report No.57 May 2024

List of Awarded and Nominated Engineers for the 72nd
JEMA Technological Achievement Award in 2023
Heavy Electrical Category
Prize

Title
Development of the SANMOTION GAC Servo Motor

Development of the SANMOTION GAC Servo Amplifier
Encouragement
Award
Development of High-Precision Disk
Module Assembly Technology

Establishment of Automatic
Weighing Method for Epoxy Resin
Using Load Cells

Department

Name

Public Relations Sect.,
Corporate Planning Dept.

Hiroki Sagara

Design Dept. 1, Servo Systems Div.

Mai Ishikawa, Takuya Saito

Design Dept. 2, Servo Systems Div.

Kazuhiro Makiuchi, Tetsuya Okazaki

Design Dept. 2, Servo Systems Div.

Yuuki Nakamura, Toshio Hiraide,
Masaki Miyashita,
Masanao Somemiya,
Hideaki Nishizawa

Production Engineering and Development Sect.,
Production Engineering Dept.,
Servo Systems Div.

Takahiro Yoneta

Subsect. 1,
Hideyuki Ayuzawa, Yuki Matsubara,
Production Engineering and Development Sect.,Tomoe Kodama, Jun Matsuzaka
Production Engineering Dept., Servo Systems Div.
Subsect. 1,
Production Engineering Sect., Production Dept.,
Cooling Systems Div.

Yuki Kanbayashi

Department names are those at the time of nomination.

SANYO DENKI Technical Report No.57 May 2024

34

Major Patents■ Patents registered in FY 2023

35

Patent Number

Title

Inventor(s)Philippines - 1-2010-500073

COUNTER-ROTATING AXIAL- FLOW FAN

Toshiyuki Nakamura,
Atsushi Yanagisawa,
Katsumichi Ishihara

Germany - 03064904

MEASUREMENT DEVICE

Katsumichi Ishihara, Takahisa Toda,
Yo Muramatsu

Europe - 03064904

MEASUREMENT DEVICE

Katsumichi Ishihara, Takahisa Toda,
Yo MuramatsuFrance - 03064904

MEASUREMENT DEVICE

Katsumichi Ishihara, Takahisa Toda,
Yo Muramatsu

U.K. - 03064904

MEASUREMENT DEVICE

Katsumichi Ishihara, Takahisa Toda,
Yo Muramatsu

Germany - 03085962

BIDIRECTIONAL AXIAL FAN DEVICE

Satoshi Fujimaki, Toshiya Nishizawa,
Takashi Kawashima

Europe - 03085962

BIDIRECTIONAL AXIAL FAN DEVICE

Satoshi Fujimaki, Toshiya Nishizawa,
Takashi Kawashima

Finland - 03085962

BIDIRECTIONAL AXIAL FAN DEVICE

Satoshi Fujimaki, Toshiya Nishizawa,
Takashi Kawashima

France - 03085962

BIDIRECTIONAL AXIAL FAN DEVICE

Satoshi Fujimaki, Toshiya Nishizawa,
Takashi Kawashima

U.K. - 03085962

BIDIRECTIONAL AXIAL FAN DEVICE

Satoshi Fujimaki, Toshiya Nishizawa,
Takashi Kawashima

Japan - 07228949

POWER CONVERSION EQUIPMENT

Minoru Yanagisawa

China - ZL201711429557.7

MOTOR CONTROL APPARATUS

Yuji Ide, Toshio Hiraide,
Michio Kitahara

Germany - 03415831

COOLING FAN AUTOMATIC CONTROL SYSTEM
Naoki Murakami, Masashi Murakami
AND COOLING FAN AUTOMATIC CONTROL DEVICE

Europe - 03415831

COOLING FAN AUTOMATIC CONTROL SYSTEM
Naoki Murakami, Masashi Murakami
AND COOLING FAN AUTOMATIC CONTROL DEVICE

Finland - 03415831

COOLING FAN AUTOMATIC CONTROL SYSTEM
Naoki Murakami, Masashi Murakami
AND COOLING FAN AUTOMATIC CONTROL DEVICEFrance - 03415831

COOLING FAN AUTOMATIC CONTROL SYSTEM
Naoki Murakami, Masashi Murakami
AND COOLING FAN AUTOMATIC CONTROL DEVICE

U.K. - 03415831

COOLING FAN AUTOMATIC CONTROL SYSTEM
Naoki Murakami, Masashi Murakami
AND COOLING FAN AUTOMATIC CONTROL DEVICE

China - ZL201810783296.7

SHAFT ROTATION LINEAR MOTOR

Yuqi Tang

Korea - 102583198

SHAFT ROTATION LINEAR MOTOR

Yuqi Tang

Taiwan - I791565

SHAFT ROTATION LINEAR MOTOR

Yuqi Tang

Korea - 102566943

STATOR OF ROTATING ARMATURE
AND ASSEMBLY METHOD THEREOF

Mitsuaki Shioiri, Koji Nakatake,Yasushi Yoda, Hong Zhang,
Kazuhiro Yoda, Shogo Yoda

Taiwan - I798377

FAN MOTOR APPARATUS AND PROTECTION
COVER OF FAN MOTOR APPARATUS

Yusuke Okuda, Haruhisa Maruyama,
Yoshihisa Yamazaki

China - ZL201910659887.8

FAN CONTROL APPARATUS AND FAN CONTROLMETHOD

Naoki Murakami, Honami Osawa,
Soma Araki, Masashi Murakami

Taiwan - I819042

FAN CONTROL APPARATUS AND FAN CONTROLMETHOD

Naoki Murakami, Honami Osawa,
Soma Araki, Masashi Murakami

U.S. - 11662117

FAN CONTROL APPARATUS AND FAN CONTROLMETHOD

Naoki Murakami, Honami Osawa,
Soma Araki, Masashi Murakami

Taiwan - I819151

ARMATURE MOLDED STRUCTURE

Manabu Horiuchi, Hiroki Sagara,
Jun Kitajima, Mai Shimizu,
Takashi Matsushita

Taiwan - I818138

WATERPROOF BLOWER FAN

Masaki Kodama, Toshiya Nishizawa,
Kakuhiko Hata

SANYO DENKI Technical Report No.57 May 2024

Patent Number

Title

Inventor(s)Japan - 07394532

MOLDED STRUCTURE OF BRUSHLESSFAN MOTOR AND METHOD FOR MOLDING
BRUSHLESS FAN MOTOR

Munenori Takakuwa, Kakuhiko Hata,
Yukihiro Nagatsuka

U.S. - 11735963

POLYGONAL FRAME STRUCTURE WITH
Manabu Horiuchi, Yasushi Misawa,
ARMATURE CORE WITH CONNECTED AND OPEN
Jun Kitajima, Mai Shimizu
CORE SHEETS INSIDE THE FRAME

Japan - 07316186

MOTOR CONTROL DEVICE AND INSULATIONRESISTANCE DETECTION METHOD OF SAME

Yuji Ide, Keigo Kikuchi, Toshio Hiraide

Japan - 07394603

LINEAR MOTOR AND METHODFOR MANUFACTURING IT

Yuqi TangJapan - 07386145

MOTOR CONTROL DEVICE AND INSULATIONRESISTANCE DETECTION METHOD OF SAME

Yuji Ide, Keigo Kikuchi,
Michio Kitahara, Toshio Hiraide

Japan - 07394669

MOTOR CONTROL APPARATUS

Yuji Ide, Michio Kitahara,
Toshio Hiraide

U.S. - 11784520

ROTOR STRUCTURE OF SYNCHRONUS MOTOR

Manabu Horiuchi, Keisuke Nagata

U.S. - 11804766

LINEAR HEAD MODULE

Satoshi Inaba, Yuki Onda,
Yasushi Misawa

U.S. - 11572883

REVERSIBLE FAN

Yoshihisa Yamazaki

U.S. - 11764660

LINEAR HEAD MODULE

Satoshi Inaba, Yuki Onda,
Yasushi Misawa

U.S. - 11808271

AXIAL FAN

Yoshihisa Yamazaki

Internal Recognition: Invention Excellence Award
Awarded in May 2023
Prize

Excellence
Award

Title

Department

Name

Motor Controller Mounting Structure

Design Dept. 2,
Servo Systems Div.

Yuji Ide, Takao Oshimori,Hiroaki Koike

Control and Magnetic Bias Suppression
for Grid-connected PV Inverter

Design Dept.,
Power Systems Div.

Makoto Ishida,
Minoru Yanagisawa

Rotary Electric Motor Stator and Its Assembly

Design Dept. 1,
Servo Systems Div.

Koji Nakatake, Yasushi Yoda,
Mitsuaki Shioiri,
Kazuhiro Yoda, Shogo Yoda,
Hong Zhang

Automatic Encoder Identification Device

Design Dept. 2,
Servo Systems Div.

Masao Mizuguchi,
Ryuichi Yanagisawa

Design Dept. 2,
Servo Systems Div.

Yuji Ide, Toshio Hiraide,
Masakazu Sakai

Under Operating Officer
for Technical Development

Keigo Kikuchi

Detection of Motor Insulation Resistance

SANYO DENKI Technical Report No.57 May 2024

36

Internal Recognition: Manufacturing Excellence Award
Awarded in May 2023
Prize

Excellence
Award

Title

Department

Name

In-Mold Gate Cutter Design for Large
Fan Molds

Subsect. 2,
Production Engineering Sect.,
Production Dept.,
Cooling Systems Div.

Yoichi Yamada, Taiki Kato

Manual Insertion Line for Improving
Productivity and Reducing Defects

SANYO DENKI PHILIPPINES, INC.

Rooks Estamo,
Marlon Ico, Joseph Mella

Technical Papers Published Outside the Company
January to December 2023
in General Technical Journals
Title of Paper

Authors

Feature: Product and Technology
SANYO DENKI
Development of Member Companies
CO., LTD.
and the Results of 2023

Name of Journal

Issued on Published by

Denki(Electrical Appliances)2022.02

The Japan Electrical
Manufacturers’
Association (JEMA)

Development of Compact UPS
Series SANUPS E11B-Li
and SANUPS A11M-Li

Hiroshi Sakaba,
Akihiro Tsukada,Kazuya Nishizawa

Smart Grid

2023.01

Taiga PublishingCo., Ltd.

SANMOTION Servo Systems Features, Technical Development,
and Application Examples

Yasushi Misawa,
Tsuyoshi Kobayashi

Machine Design2023.11

Nikkan Kogyo
ShimbunTechnical Papers Published Outside the Company
January to December 2023

37

Title of Paper

Authors

Simultaneous Temperature
Estimation of Winding andMagnet of PMSM by HighFrequency-Injection into
Static Coordinate (Second
Report)Yuji Ide, Daigo Kuraishi,
Akihiko Takahashi,
Michio Kitahara(Joint-author: Nagaoka
University of Technology)

IEEJ Technical
Meeting Papers

2023.01

IEEJ Joint Technical
Meeting on Semiconductor
Power Converterand Motor Drive
Linear Drive Technology
That Meets Diversifying
Needs

Linear Drive Technology
That Meets Diversifying
Needs

Satoshi Sugita(Joint author: Investigating
IEEJ Technical
R&D Committee on
ReportTechnology for Utilizing
Industrial Linear Drives)

2023.04

IEEJ (D), Industrial
Applications Category

Redefining the Instantaneous
Maximum Power of Motors
Required for Service Robots

Satoshi Sugita(Joint author: Technical
Investigation Expert
Committee for Defining
Suitable Motors
for Service Robots)

2023.08

IEEJ (D), Industrial
Applications Category

SANYO DENKI Technical Report No.57 May 2024

Name of Journal

IEEJ Industrial
Applications
Category
Conference

Issued on Published by4
57

May 2020
May2024

https://www.sanyodenki.com/

Published in Japan on May 15, 2024 by SANYO DENKI CO., LTD.
Published semi-yearly
3-33-1 Minami-Otsuka, Toshima-ku, Tokyo 170-8451, Japan
Phone +81 3 5927 1020
Publisher Nobumasa Kodama
Editorial Board Members:
Satoru Onodera
Editor-in-Chief
Yasutaka Narusawa
Managing Editor
Takashi Kobayashi
Secretariat
Shiho Tsukada
Secretariat
Risa Inamura
Secretariat
Kakuhiko Hata
Sho Matsushita
Hiroshi Sakaba
Makoto Ishida
Daigo Kuraishi
Yoshiyuki Usui
Hitoshi Yoshiike
Rieko Komine
Copyright © 2024 SANYO DENKI CO., LTD.
All rights reserved.
No part of this publication may be reproduced in any manner whatsoever without written
permission from SANYO DENKI.
All company and product names used in this publication are trademarks or registeredtrademarks of their respective companies.